Centrifugal bolting-machine.



G. UUSSO-N. A GENTBIFUGAL BOLTING MACHINE. APPLIoATIoN FILED DBo.19,1sos.

Patented Aug. 31, 1909,

Human Hl! n u m w a HJ QJ T u im@ wm )y W Aunpsw. s GRAHAM co.. vnnroimncmnnms wnmmn n r c hereafter with reference to the accompany- GEORGES CUSSON, 0F

CHATEAUROUX, FRANCE, ASSIGNOR TO THE FIRM 0F G. ET A.

FRBES ET CIE., 0F CHATEAUROUX, FRANCE.

CUSSON CENTRIFUGAL connue-MACHINE.

932, 84:7. Specification of Letters Patent.

Application filed December 19, 1903.

Patented Aug. 31, 1909.

Serial No. 185,830.

T 0 all whom 'it may concern:

Be it known that l, Gnonens zen of the French Republic, and residing at Chateauroux, indre, F rance, have invented a certain new and useful Centrifugal Bolting-Machine, of which the following is a full, clear, and exact description.

rl"his invention relates to an apparatus suitable for use in a flour mill as a flour extractor for the different grindings of wheat, as an extractor of semolina, oatmeal or groats, as a meal-sifter and capable also of being used in various industries.

A description of the apparatus is given on its shaft and rotated by a belt driven by a pulley T, fixed on the shaft of the screw l?. The substance to be treated is introduced at one end of the apparatus through an opening U; it is then thrown, while traveling between the coils of the helical brush B, onto the gauze forming the revoluble sieve until it reaches the end of the screw ejected.

At the entrance and at the exit, palettes or floats V, arranged inside the cylinder G, assist the admission and rejection of the substance. A bell-mouth X, fixed to the disk of the cylinder G, facilitates the removal of the substance that has not passed through the meshes of the cylindrical sieve, and ejects it into the passage Y, whence it is delivered into a receptacle of any kind. The rotary movements in opposite directions of the cylinder A with its helicoidal brush on the one hand and of the cylindrical sieve Gr on the other hand, give a result favorable to the effecting of a proper separation.

Having thus described my invention, what l claim as such and desire to secure by Letters Patent, is

1. A bolting machine, closing screen cylinder, a cylinder arranged in the screen cylinder and having fixed on its periphery a helicoidally arranged brush ribbon, the bristles of which are of flexible material and extend in close proximity to the inner surface of the screen cylinder, the said brush cylinder having solid walls to prevent the entrance of the material carried by the brush over the cylinder, the brush forming with the solid wall of the brush cylinder, and the inner surface of the screen cylinder a narrow helicoidal channel inc-losing the material and in which the material travels, the said screen cylinder and the brush cylinder being mounted to turn, and means for turning the cylinders in opposite directions, the screen cylinder rotating at less speed than the brush cylinder.

` 2. A bolting machine, comprising a casing, a screen cylinder arranged in the upper part of said casing, a cylinder arranged in the screen cylinder and having a solid wall, a narrow brush ribbon secured to the periphery of the inner cylinder in a helicoidal line and provided with flexible brushes extending in close proximity to the inner surface of the screen cylinder, the spirals formed by the brush ribbon and bristles, be-

CUssoN, a citi- 7 and is ing drawing in which Figure 1 shows in longitudinal section the improved apparatus. Fig. 2 is an end view. Fig. 3 is a cross section.

This machine comprises a cylinder A, on the surface of which is fixed along a helicoidal line, a brush ribbon B, of any suitable nature; this cylinder is mounted by means of disks C, on a shaft D, journaled in bearings E, and driven by means of a pulley F, keyed to one of its ends. A circular framework Gr, formed of longitudinal strips connected by hoops, surrounds this cylinder; this framework forms the support for a cylindrical sieve of metallic or silken gauze or mesh, according to the nature of the substance to be treated.

The cylindrical sieve is revoluble, and for this purpose it is fitted at its ends with two crowns H, by which it rests on rollers which at the same time serve as frictional drivers; these rollers are rotated from the shaft D by means of belts and pulleys L L and M M; the axles of these rollers and of their pulleys are mounted on adjustable sup,- ports K. With the construction and arrangement shown, the cylindrical sieve G rotates at much less speed than the brush cylinder A. To the surface of the cylindrical sieve Gr is applied a flexible brush N, mounted on a shaft supported in adjustable bearings O; this brush insures the continuous cleaning of the sieve G. The substance which has passed through the meshes of the cylindrical sieve and falls into the bottom of the drum, is drawn away by a screw conveyer P, the shaft of which is fitted with a pulley Q, rotated by a belt driven by a pulley R, fixed on the shaft D.

The brush N is driven by a pulley S, fixed comprising an inmg" arranged close together, and forming with the solid Wall of the brush cylinder and theinner surface of the screen cylinder, a narrow continuous helicoidal channel unobstructed from end to end, the said channel inclosing the material and in which the material travels, the said screen cylinder having an inlet at one end leading to said channel and an outlet at the other end leading from said channel to the outside of the casing, means at the entrance and exit to assist the admission and rejection of the material, a. drive shaft for the inner or brush cylinder, means driven from said shaft for turning the screen cylinder in an opposite direction and at less speed than the inner or brush cylinder, the revolution of the inner cylinder causing the material to be thrown onto the bolting surface of the screen cylinder, the material that passes through the meshes of the screen cylinder falling to the lower part of said casing, a conveyer for the material that passes through the meshes of the screen cylinder, and means engaging the outer surface of the screen cylinder for cleaning the same.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses.

GEORGES CUSSON. lVtnesses z l. I. GRAVES, G. GoU'rnRoN. 

